The 27" imac looks like a pretty decent CS6 machine. Dual thunderbolt for storage and i/o, GPU configurable to a 680MX will make the mercury engine run smooth and will probably fair well with after effects raytracing. The fusion drive looks allright, that or SSD only would be a must though to get the best performance. I like that at least on the 27" you can still replace ram yourself, and you can go up to 32GB.

I think the ram was always user-serviceable on iMacs, which is decent of Apple, considering how they overcharge on memory.

5mm at the edge?! How the heck did they fit a computer into that thing? Also, a good move with nvidia graphics, now I can actually put all those CUDA-accelerated features out there to the test.

I'm actually kind of glad there's no retina display yet, so far it would seem to be more of a burden on the system, than an actual aid. On the other hand, seeing 4K in all its 1:1 glory would be marvelous.

I never got this "thinner is better" thing, especially at a desktop - I mean who care how thin it is when it is sitting there?
You want a beefy workhorse not a design sculpture. No?
That is essentially a laptop within a big screen, and mobile GPUs don't cut it.

That was the first I thought as well, I can understand the use for a super thin laptop or a tablet because that you can take with you all the time but I don't see people carrying a Imac around, it's a desktop meaning it stays on one place and normally doesn't move, what's the advantage of it being thin? I only expect problems with the thing overheating, this is a pretty useless design step, it's starting to show Steve is not around anymore.